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DM74LS491AN from NS,National Semiconductor

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DM74LS491AN

Manufacturer: NS

7 V, 10-bit counter

Partnumber Manufacturer Quantity Availability
DM74LS491AN NS 15 In Stock

Description and Introduction

7 V, 10-bit counter The DM74LS491AN is a 4-bit bidirectional universal shift register manufactured by National Semiconductor (NS). Here are its key specifications:

- **Logic Family**: 74LS (Low-power Schottky)
- **Function**: 4-bit bidirectional universal shift register
- **Operating Voltage**: 5V (TTL compatible)
- **Package**: 16-pin DIP (Dual In-line Package)
- **Operating Temperature Range**: 0°C to +70°C (commercial grade)
- **Propagation Delay**: Typically 25ns (varies with conditions)
- **Power Dissipation**: Typically 45mW (static)
- **Input/Output Compatibility**: TTL levels
- **Features**: Parallel load, serial shift left/right, synchronous operation

For detailed electrical characteristics, refer to the official National Semiconductor datasheet.

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